WO1989009920A1 - Support structures - Google Patents

Support structures Download PDF

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Publication number
WO1989009920A1
WO1989009920A1 PCT/GB1989/000347 GB8900347W WO8909920A1 WO 1989009920 A1 WO1989009920 A1 WO 1989009920A1 GB 8900347 W GB8900347 W GB 8900347W WO 8909920 A1 WO8909920 A1 WO 8909920A1
Authority
WO
WIPO (PCT)
Prior art keywords
elongate
base
passage
temperature
heating means
Prior art date
Application number
PCT/GB1989/000347
Other languages
English (en)
French (fr)
Inventor
James Bury
Original Assignee
L.K. Tool Company Limited
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by L.K. Tool Company Limited filed Critical L.K. Tool Company Limited
Priority to AT89904580T priority Critical patent/ATE91176T1/de
Priority to DE1989904580 priority patent/DE452310T1/de
Publication of WO1989009920A1 publication Critical patent/WO1989009920A1/en

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q11/00Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
    • B23Q11/14Methods or arrangements for maintaining a constant temperature in parts of machine tools
    • B23Q11/143Methods or arrangements for maintaining a constant temperature in parts of machine tools comprising heating means
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q11/00Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
    • B23Q11/14Methods or arrangements for maintaining a constant temperature in parts of machine tools
    • B23Q11/141Methods or arrangements for maintaining a constant temperature in parts of machine tools using a closed fluid circuit for cooling or heating
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B5/00Measuring arrangements characterised by the use of mechanical techniques
    • G01B5/0011Arrangements for eliminating or compensation of measuring errors due to temperature or weight
    • G01B5/0014Arrangements for eliminating or compensation of measuring errors due to temperature or weight due to temperature

Definitions

  • This invention relates to apparatus for supporting components and is particularly but not exclusively conc ⁇ erned with support structures for use with high accuracy measuring and checking machines.
  • support apparatus comprising elongate means having a through passage, heating means provided in the passage, and means for controlling the heating means whereby to be capable of maintaining the temperature of the apparatus at a level at or above the ambient temperature.
  • the heating means comprises one or more electrically heated strips which can be located centrally in the passage.
  • the elongate means comprises a plurality of linear tubular elements connected together in a rectangular configuration, particularly to form a base guideway of a measuring machine.
  • the elongate means may be formed of a lightweight material such as steel or a granite composite material, and external insulation may be provided.
  • Fan means may be provided within the elongate tubular means to move air therethrough and thereby assist in providing an even distribution of temperature throughout the apparatus.
  • Fig. 1 is a diagrammatic perspective view of an apparatus according to the invention
  • Fig. 2 is an enlarged section on AAAA of Fig. 1;
  • Fig. 3 is a section on B-B of Fig. 2.
  • a guideway base for use in a three axis co-ordinate measuring machine comprises a first pair of elongate tubular components 10 interconnected at their respective ends by a pair of tubular components 12 of reduced length whereby to define a rectangular configur ⁇ ation with a continuous passage therethrough.
  • an arrangement of elongate tubular struts 14 ext ⁇ end between inwardly facing external walls of the elements 10,12 in any suitable arrangement.
  • the elements 10,12 and the struts 14 are formed of a lightweight material, prefer ⁇ ably steel or a granite composite material comprising granite chippings and epoxy.
  • a strip 16 incorporating one or more resistance wires is located within the elements 10,12 and the- struts 14 to extend around the base.
  • the strip 16 is preferably located centrally of the elements 10,12 by being suspended by arms 17 from side walls thereof, so as to avoid creating temperature gradients in the walls of the elements 10,12.
  • the strip 16 is appropriately connected in an electrical circuit (not shown) for heating of the strip and thereby the base.
  • Additional heating strips may be used as necessary and in a modification the strip 16 may not extend around the whole base.
  • External insulation is provided for the elements 10,12 in order to avoid a temperature gradient across the walls.
  • the insulation may be in a spaced relation with the external walls of the elements 10,12 to provide an air layer and it is envisaged that there may be provision for air to exit from the passage in the base into the spacing between the external walls and the insulation layer.
  • the heating circuit controls the heating strip such that the temperature of the base structure is maintained at a constant level, at or above the ambient temperature. In this way changes in the ambient tempera ⁇ ture do not result in any thermal expansion of the material of the base structure and therefore distortion and loss of measuring accuracy can be avoided.
  • the configuration of the base structure may differ from that described and shown and other suitable heating means may be provided internally of the elements.
  • the structure may be formed of any other suitable. material, and may be other than a machine base.
  • the structure may take the form of a column and/or bridge of a co-ordinate measuring machine.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Machine Tool Units (AREA)
  • Investigating Or Analyzing Materials Using Thermal Means (AREA)
  • Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
PCT/GB1989/000347 1988-04-08 1989-04-05 Support structures WO1989009920A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AT89904580T ATE91176T1 (de) 1988-04-08 1989-04-05 Traegerstrukturen.
DE1989904580 DE452310T1 (de) 1988-04-08 1989-04-05 Traegerstrukturen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB888808281A GB8808281D0 (en) 1988-04-08 1988-04-08 Support structure
GB8808281.3 1988-04-08

Publications (1)

Publication Number Publication Date
WO1989009920A1 true WO1989009920A1 (en) 1989-10-19

Family

ID=10634830

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1989/000347 WO1989009920A1 (en) 1988-04-08 1989-04-05 Support structures

Country Status (6)

Country Link
US (1) US5125163A (de)
EP (1) EP0452310B1 (de)
JP (1) JPH03505369A (de)
DE (1) DE68907411T2 (de)
GB (1) GB8808281D0 (de)
WO (1) WO1989009920A1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6829838B1 (en) 2003-09-09 2004-12-14 Hexagon Metrology Ab Temperature compensation system for a coordinate measuring machine
US7191541B1 (en) 2005-12-06 2007-03-20 Hexagon Metrology Ab Temperature compensation system for a coordinate measuring machine

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9413194D0 (en) * 1994-06-30 1994-08-24 Renishaw Plc Probe head
US6058618A (en) * 1997-09-09 2000-05-09 Giddings & Lewis, Inc. Coordinate measuring machine
DE29904767U1 (de) 1999-03-16 1999-06-02 Zeiss Carl Fa Koordinatenmeßgerät mit einem biegesteifen Meßtisch
NL1023427C2 (nl) * 2003-05-14 2004-11-16 Tno Montagebed.
DE10322199A1 (de) * 2003-05-16 2004-12-02 Bhs Corrugated Maschinen- Und Anlagenbau Gmbh Längs-Bearbeitungs-Maschine für Wellpappe-Bahnen
DE102013210821A1 (de) * 2013-06-10 2014-12-11 Carl Zeiss Industrielle Messtechnik Gmbh Koordinatenmessgerät
EP3392610B1 (de) 2017-04-19 2022-02-23 Renishaw PLC Lagerbefestigung
US10646883B2 (en) 2017-04-19 2020-05-12 Renishaw Plc Contamination trap
US10826369B2 (en) 2017-04-19 2020-11-03 Renishaw Plc Positioning apparatus with relatively moveable members and a linear motor mounted thereon
JP7199375B2 (ja) 2017-04-19 2023-01-05 レニショウ パブリック リミテッド カンパニー ベアリング構成部
WO2018193228A1 (en) 2017-04-19 2018-10-25 Renishaw Plc Measuring apparatus counterbalance
IT201700061222A1 (it) * 2017-06-05 2018-12-05 Breton Spa Macchina utensile e metodo per il controllo di variazioni di temperatura in una macchina utensile.
EP3719443B1 (de) * 2019-04-03 2021-06-09 Hexagon Technology Center GmbH Koordinatenmessmaschine mit selbstreinigendem luftlager
DE102022203577A1 (de) 2021-05-06 2022-11-10 Carl Zeiss Industrielle Messtechnik Gmbh Verfahren und Vorrichtung zur Temperierung sowie Strukturelement und Verfahren zur Herstellung

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1271581A (fr) * 1960-08-01 1961-08-07 Ateliers Gsp Dispositif de correction de dilatation, notamment pour machine-outil
WO1983002740A1 (en) * 1982-02-05 1983-08-18 Gleason Works Isothermal system for machine tool
GB2114924A (en) * 1982-02-16 1983-09-01 Inoue Japax Res Holding a thermally deflectable member of a machine tool against mispositioning
DE3325387A1 (de) * 1983-07-14 1985-01-31 Daimler-Benz Ag, 7000 Stuttgart Pruefnormal zur ueberpruefung von laengenmessgeraeten
DE3437196C1 (de) * 1984-10-10 1986-05-15 Bundesrepublik Deutschland, vertreten durch den Bundesminister für Wirtschaft, dieser vertreten durch den Präsidenten der Physikalisch-Technischen Bundesanstalt, 3300 Braunschweig Endmaßkomparator zum Vergleich von Parallelendmaßen in horizontaler Lage

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US326925A (en) * 1885-09-22 Island
US2336506A (en) * 1942-11-30 1943-12-14 Harold E Saunders Surface plate
US4250396A (en) * 1979-09-04 1981-02-10 Walter Leuca Heated drafting board
JPS5997823A (ja) * 1982-11-24 1984-06-05 Fuji Heavy Ind Ltd 工作機械ベツドの熱変形防止装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1271581A (fr) * 1960-08-01 1961-08-07 Ateliers Gsp Dispositif de correction de dilatation, notamment pour machine-outil
WO1983002740A1 (en) * 1982-02-05 1983-08-18 Gleason Works Isothermal system for machine tool
GB2114924A (en) * 1982-02-16 1983-09-01 Inoue Japax Res Holding a thermally deflectable member of a machine tool against mispositioning
DE3325387A1 (de) * 1983-07-14 1985-01-31 Daimler-Benz Ag, 7000 Stuttgart Pruefnormal zur ueberpruefung von laengenmessgeraeten
DE3437196C1 (de) * 1984-10-10 1986-05-15 Bundesrepublik Deutschland, vertreten durch den Bundesminister für Wirtschaft, dieser vertreten durch den Präsidenten der Physikalisch-Technischen Bundesanstalt, 3300 Braunschweig Endmaßkomparator zum Vergleich von Parallelendmaßen in horizontaler Lage

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6829838B1 (en) 2003-09-09 2004-12-14 Hexagon Metrology Ab Temperature compensation system for a coordinate measuring machine
US7059063B2 (en) 2003-09-09 2006-06-13 Hexagon Metrology Ab Flexible coupling to accommodate thermal expansion and contraction in a coordinate measuring machine carriage
US7191541B1 (en) 2005-12-06 2007-03-20 Hexagon Metrology Ab Temperature compensation system for a coordinate measuring machine

Also Published As

Publication number Publication date
DE68907411D1 (de) 1993-08-05
US5125163A (en) 1992-06-30
GB8808281D0 (en) 1988-05-11
JPH03505369A (ja) 1991-11-21
EP0452310B1 (de) 1993-06-30
EP0452310A1 (de) 1991-10-23
DE68907411T2 (de) 1993-10-14

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